Questions Asked on
November 30, 2016

  1. Chemistry

    Answer the questions about the following reaction. 4Al(s) + 3O2(g) 2Al2O3 (s) How many molecules of O2 are used in the reaction? How many oxygen atoms are required? How many moles of Al2O3 are formed? What is the mole ratio of Al to O2?

    asked by Raven-Sierra
  2. Language Arts

    1. What is the key to an effective search for information as you prepare for your presentation? (1 point) A. Prewriting B. Strong research skills C. Paraphrasing D. Drawing conclusions 2. Why would a website that is selling a service not be a credible

    asked by Mathew
  3. physics

    the speed of the train increased from 15 mi/hr to 25 mi/hr in distance of 500 ft. calculate the average acceleration in ft/s^2

    asked by Anonymous
  4. cal

    the height of a rectangular box is 10 in. Its length increases at the rate of 2 in/sec.;its width decreases at the rate of 4 in/sec. When the length is 8 in and the width is 6 in, the volume of the box is changing in cubic inches per second at the rate of

    asked by lis
  5. math

    Town P is on bearing 315 degree from town Q. While town R is south of town P and west of town Q. If town R is 60km away from Q, how fara is R from P?

    asked by Anonymous
  6. Algebra

    The equation h= -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground,at t seconds after the ball is thrown upward.How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

    asked by Anonymous
  7. Science

    which of the following statements is true as the moon goes from new moon to full moon phase? (2 points) A:We see more of the lighted side of the moon B:We see less of the lighted side of the moon C:The time it takes to go from new moon to full moon is 2

    asked by Kali
  8. Calculus 1

    If each edge of a cube is increasing at the constant rate of 4 cm/s. How fast is the volume of the cube increasing when the length x of an edge is 11 cm long?

    asked by Dhrupal patel
  9. calc

    When the height of a cylinder is 12 cm and the radius is 4 cm, the circumference of the cylinder is increasing at a rate of pie/4 cm/m in, and the height of the cylinder is increasing four times faster than the radius. How fast is the volume of the

    asked by marrisa smith
  10. Maths

    the points A,B,C and D lie on a straight line. The ratio of the length of AB to the length of BC is 3:4 and the ratio of the length of AC to the length of CD is 2:1. Find the ratio of the length of BC to the length of AD ?

    asked by Tarun
  11. Science

    It takes a force of 22 N to push a 10 kg box horizontally with a constant velocity over concrete. What is the coefficient of kinetic friction between the box and the concrete? My guess is 10 kg/22 N = 0.4545 but I'm not sure if you have to take in account

    asked by Fred
  12. math

    The gradient of one of the line of ax2+2hxy+by2=0 is twice that of the other,show that 8h2=9ab

    asked by Sajjad
  13. Algebra 1 B

    2. How is the graph of y = -6x^2 + 4 different from the graph y = -6x^2? A. It is shifted 4 units to the left. B. It is shifted 4 unites to the right C. It is shifted 4 units up. *** D.It is shifted 4 units down. 3. A model rocket is launched into a large

    asked by Abigail
  14. Calculus

    If f(x) is differentiable for the closed interval [−1, 4] such that f(−1) = −3 and f(4) = 12, then there exists a value c, −1< c < 4 such that a)f'(c)=3 b)f'(c)=0 C)f(c)=-15 d)f(c)=3 I understand that you are supposed to use the mean value theorem,

    asked by Miguel
  15. Statistics

    The mean height of a certain kind of plant is 185 centimeters. Suppose we want to carry out a hypothesis test to see if the mean height when these plants are treated with a certain chemical differs from 185. State the null hypothesis H0 and the alternative

    asked by Jimmy
  16. social studies - WW1

    in 1914, which neutral nations joined allies later? Also, which neutral nations joined central powers later? Why would Germany worry about the alliance between France and Russia? Based on the map, which alliance had a greater advantage in 1914? Explain

    asked by Jaime
  17. 6th grade math

    stephanie ran 1 lap in 6 minutes. At this rate how far would she run in 30 minutes?

    asked by Kaye
  18. English

    Which of the following is a true statement about an MLA Works Cited page? A. The Works Cited page requires no special formatting. B. The Works Cited page should immediately follow the conclusion and be on the same page. C. The Works Cited page should

    asked by anonymous
  19. Social studies

    which of the following is not an element of culture? A. language B. customs C. age** D. dress

    asked by Cyborg_DRAGon
  20. Math

    B) Noralie used 22 Gallons of Gas to go 682 miles. 1)What are the two unit rates that she might compute? 2)Compute each unit rate and tell what it means. 3) Which way is the most useful? Why?

    asked by Siren
  21. Math Check

    Which nonterminating decimal can be converted into a rational number? 0.818118111... 0.020304050... 0.010110111... 0.321321321... *** George has a square sandbox in the backyard. The sandbox has an area of 160 square feet. To the nearest foot, what is the

    asked by Kimberly
  22. cal

    if f(x)= 4x^3-21x^2+36x-4, then the graph of f is decreasing and concave up on the interval(?,?)

    asked by lis
  23. world geography

    The results of the Cold War included all of the following except_

    asked by Anonymous
  24. math algebra

    the product of two consecutive even numbers is 440. What is the sum of the numbers?

    asked by laura
  25. Physics

    a 60-kg ice skater holds up a large sheet of cardboard that can catch the wind and drive her (frictionlessly) across the ice. while she's moving at 0.5m/s, a wind that is constant and horizontal for 5.0s exerts a forward force on the cardboard of 2.0 n.

    asked by Jocelyne
  26. physics

    A 4.0 kg, 36-cm-diameter metal disk, initially at rest, can rotate on an axle along its axis. A steady 5.5 N tangential force is applied to the edge of the disk. What is the disk's angular velocity, in rpm, 4.0 s later?

    asked by Nathan
  27. Physics

    Light of wavelength 469 nm passes through a slit, creating a diffraction pattern on a screen. The angular separation between the first diffraction minima on either side of the central maximum is 6.0∘ . Determine the width of the slit. I used this

    asked by Po
  28. Algebra

    Suppose a parabola has an axis of symmetry at x = -2, a minimum height at -6, and passes through the point (0, 10). Write the equation of the parabola in vertex form.

    asked by Anonymous
  29. additional mathematics

    if the 2nd term and the 4th term of an arithmetic progression are 15 and 23 respectively, find the first term and the common difference

    asked by yoyo
  30. English

    Which of the following is a true statement about an MLA Works Cited page? A. The Works Cited page requires no special formatting. B. The Works Cited page should immediately follow the conclusion and be on the same page. C. The Works Cited page should

    asked by brooke
  31. Algebra 2

    Complex numbers are written in the form a + bi. What does i represent? -1 0 1 sqrt-1 **my choice

    asked by JJ
  32. physic

    what form of energy can be coverted from sound to light?

    asked by KO
  33. math

    If you wanted to reduce the 8 by 6 rectangle by a ratio of 1/4, what would the dimensions of the new rectangle be?

    asked by Diego
  34. History

    7. Which philosophy did Tang rulers apply to govern their empire? A. Buddhism B. Confucianism C. Daoism D. Hinduism I think the answer is D. but Im not sure.

    asked by Alana
  35. Algebra

    Find the sum: 8 over sigma symbol, k=1 below the symbol and (-1)^k+1,5k to the right of it. Sorry the format is off, but I didnt know how else to type it in. Thank you.

    asked by Alisha
  36. Math

    A fish bowl is constructed out of a spherical bowl with diameter 20cm. The bowl was initially empty and water flows into the bowl at a rate of 10cm^3/s. Let V and h be the volume and depth of water in the bowl at time t seconds respectively. Find dh/dt

    asked by Isabel
  37. History

    Many people believe that the Civil War is considered to be the worst war in American history. What is the basis for this belief and do you agree or disagree with this statement?

    asked by Autumn
  38. VU

    A man spends 2/7 of his income on food and 3/7on clothing. If he still saves Rs. 500, what is his total income?

    asked by sabir
  39. Math

    I am an odd number I am less than 100 The sum of my digits is 12 What am I

    asked by Anonymous
  40. Riyadh

    A banner needs to be enlarged from its original format. The dimensions of the original are 4 cm tall by 25cm wide. The enlarged banner needs to be at least 8 m wide but no more than 1.4 m tall. Calculate the minimum and maximum ratios of enlargement

    asked by Akabr
  41. science

    A ray of light travelling in air strike the water surface at an angle of 40° calculate the refractive index of water if angle of refraction is 29°

    asked by Shivani singh
  42. consumers math

    Sam Sounds received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem.

    asked by Anonymous
  43. Math

    Laura bought 24 pounds of sugar for $10. How many dollars did she pay per pound of sugar? If necessary, round your answers to the nearest hundredth. >> I got the answer 0.41 or 2.4. It says it is wrong.

    asked by Piper
  44. Algebra

    A physics student stands at the top of a hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = -0.02x^2 +

    asked by Mathew
  45. Physics

    A container is filled to a depth of 20cm with water. on top of the water floats a 30.0 cm thick layer of oil with specific gravity of 0.700, what is the absolute pressure at the bottom? Please help!

    asked by Anonymous
  46. Chemistry

    A 26.3 gram sample of solid potassium chlorate decomposed and produced 9.45 grams of oxygen gas. What is the percent yield of oxygen?

    asked by Anonymous
  47. Chemistry 1

    What theoretical mass of MgO is produced if 0.150 g Mg3N2 is produced by strongly heating a 2.000 g sample of Mg in air?

    asked by Jay
  48. Chemistry

    one mole of ethanol releases 326.7 calories of energy during combustion. how many calories kilojoules are released? thank you ! :)

    asked by Kenlen Smith
  49. math

    the 54th term and 4th term of an A.P are -61 and 64 respectively.Find the common difference and 23rd tem

    asked by Ana
  50. Math

    Angela is twice as old as clara. Seven years ago, the sum of their ages was 16. How old is clara now?

    asked by Janna
  51. Math

    1.The difference of a number and sixteen A.n + 16 B.n - 16 C.16n*** D.n/16

    asked by Sid.V
  52. math

    I have ten,ones and tenths.My digits are next door numbers and they add up to 9. What number am I?

    asked by Owen
  53. Math

    carlos can throw a ball 14 yards . His friend raul can throw 3/7 of that distance. Is rauls throw longer or shorter than 14 yards? Now find the exact length of Raul's throw.

    asked by May
  54. english

    It's permissible to delete a word or phrase from a direct quotation as long as you don't change the meaning of the quote. To indicate your deletion in the quote, you would A. use a hyphen in place of the deleted word or passage. B. use an ellipsis to

    asked by english
  55. Math

    The sequence a(1), a(2), a(3),...,a(n-1), a(n) is such that a(r)= 7r-3. Show that 1/[√a(r) - √a(r+1)] = k[√(7r-3) - √(7r+4)]. The numbers/letters in brackets are subscript.

    asked by Jade
  56. precalculus

    please check my answers 1.Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1 2.Find the solution to the system of equations given below. x+y+z=2

    asked by Anonymous
  57. Physics

    A 50-kg ice skater moves around a bend at 8 m/s. The radius of the bend is 8 m. Centripetal force is provided by friction between the blade of the skates and the ice. What is the amount of centripetal force?

    asked by Nolan
  58. science

    The apparent weight of cube in liquid with relatibe density 0.9

    asked by rajat
  59. Calculus

    For which pair of functions f(x) and g(x) below will the lim(x->infinity) f(x)g(x)≠0 a)f(x) = 10x + e^-x; g(x) = (1/5x) b)f(x) = x^2; g(x) = e^-4x c)f(x) = (Lnx)^3; g(x) = 1/x d)f(x) = √x; g(x) = e^-x

    asked by anon
  60. Calculus

    Consider the function f(x) = {0, x = 0 and 1 - x, 0

    asked by Anonymous
  61. Math

    In a circus a tightrope is stretched from the top of a 10 ft. pole to the top of a 25 ft pole. The poles are 36 feet apart and vertical. How long is the tightrope? Show your work.

    asked by Amy
  62. Science

    Sperm and eggs are found in different parts of plant. Explain why it is important for these cells to unite and describe some factors in a environment that help unite them?

    asked by regina
  63. Chemistry


    asked by Ashraf
  64. Chemistry

    Calculate the equilibrium constant 2SO2(g]+O2(g]⇌2SO3(g] given equilibrium constant of SO2,O2,SO3 are 0.3m,0.14,1.45 respectively wt happens to the equilibrium constant a) if so2 is added b)if o2 is removed

    asked by MANASA
  65. Math

    A rectangular playground has an area of 2,996 square yards.if the width of the rectangle is 28,what is the length? Part#1 What is the area of the rectangle in square feet? Part#2

    asked by Heaven
  66. maths

    2 . Put the following macroeconomic model into matrix format using Y, C and T as the variables and find the determinant of the matrix of coefficients. There is no need to solve the equations. Y = C + I C = a + b (Y – T) T = tY Kindly help me with

    asked by Asfand
  67. Math


    asked by Mansi
  68. Math

    Find the integral ∫(x^2-6x+1)/(x^2+1) dx

    asked by Emily
  69. computer programming

    Write a c++ code to vertically mirror an image.

    asked by Anonymous
  70. Math

    What does it mean for an equation to be balanced and why must you keep an equation in balance? Can someone explain in there own words please

    asked by Sid.V
  71. Physics

    During an adiabatic process, the temperature of 6.50 moles of a monatomic ideal gas drops from 525 °C to 169 °C. What is the work done? Here is my work, is it correct? T1 = 525+273 = 798 K T2 = 169 + 273 = 442 K work done = R[T2-T1]/1-gamma = 8.314[525 -

    asked by Kayla
  72. chemistry

    In an adiabatic coffee cup, a 75mL of 1.0M HCl and 50mL of 1.0M HaOH were neutralize. The initial temperature is 22.1 C and the final temperature is 26.3 C. What is the enthalpy? S=4.18g/JC and the heat capacity of the adiabatic coffee

    asked by KO
  73. chemistry

    9.25% KCl solution is prepared by dissolving enough of the salt to give 100.0 g of solution. What is the mass of water required?

    asked by carol
  74. value

    A Biased Coin Is Such That The Head Is 4 Times More Likely To Show Up Than The Tail.What Is The Probability Of Obtaining A Head?

    asked by Jonathan
  75. Math

    Julio walks 3 1/2 miles in 1 1/4 hours

    asked by Nicole Houston
  76. English

    Ok so for my class I have to write about an issue that is found in multiculture literature. I can't think of any ideas of an issue that is important to me that i would like to write about.

    asked by Melissa Bell
  77. Calculus MATH

    Problem statement a) Suppose f(x) is defined on 0 ≤ x ≤ 1 by the following rule: f(x) is the first digit in the decimal expansion for x. For example, f(1/2) = 5 and f(0.719) = 7. Sketch the graph of y = f(x) on the unit interval with appropriate scales

    asked by JIN
  78. Physics

    A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant velocity of the ship.

    asked by Zablanity
  79. science

    I'm stuck on the following questions 1)The geocentric model of the universe states that the Earth is the center of the universe. This is an example of a A)scientific conclusion B)pseudoscience C)scientific law*** D)Scientific method Through process of

    asked by katrina
  80. college

    Provide a numerical example to illustrate the effect of double entry book keeping on transaction.

    asked by shima
  81. Math

    I am anumber greter than 10 but smaller than 40.I am a factor of 56 but not amultiple of 4

    asked by Marykaileen Constancio
  82. science

    most of the life of a cell is spent in a period of growth and development called_____.

    asked by audrey
  83. physics

    A ship us heading north at 15 km/h in a tide moving at 6 km/h west ward. Determine the magnitude and direction of the resultant velocity of the ship.

    asked by Angelika
  84. cal

    find dy/dx implicitly, given x^3+y^3=3xy

    asked by lis
  85. Math

    When a number is a multiple of 6,what are the possible values for the ones digit?

    asked by Bryce
  86. math

    Zach is planning to invest up to $50,000 in corporate and municipal bonds. The lest he will invest in corporate bonds is $6000 and he does not want to invest more than $27,000 in corporate bonds. He also does not want to invest more than $34,650 in

    asked by random
  87. math

    Mileys music has a sale on music cds. All music Cds are discounTed 15%. mariana's receipt indicates that she saved $3 on her cd purchase. What is the full price of her music cd before discount

    asked by Taylor
  88. social studies

    what was the effect of the Khmer farmers'surplus? 1) they bought more slaves 2) they earned great wealth 3) they enjoyed rainwater all the time 4) they explored the Pacific Ocean #2 ?

    asked by Evelyn
  89. Algebra

    A grocery store makes a 20-pound mixture of almonds and cashew nuts. The store charges $4 per pound for almonds and $5.50 per pound for cashews. The total value of the mixture is $92. Write a system to find how many pounds of each type of nut are in the

    asked by Nola
  90. Pre-Calculus

    Which is the best example of the use of parametric equations? A. Measuring weight on the moon. B. Finding the position of a person in a city. C. Determining the position of a satellite during a specific time of day. D. Finding the right parameters to use

    asked by Iris
  91. Calculus 1

    Water is flowing into a vertical cylindrical tank of diameter 4 m at the rate of 2 m3/min. Find the rate at which the depth of the water is rising. (Round your answer to three decimal places.)

    asked by Dhrupal patel
  92. Accounting

    Herring Wholesale Company has a defined benefit pension plan. On January 1, 2016, the following pension related data were available: ($ in 000s) Net gain–AOCI $ 350 Accumulated benefit obligation 3,170 Projected benefit obligation 3,200 Fair value of

    asked by Ben
  93. social studies

    What contributed to the growth of Japan's economy following WW2? 1)a decrease of exported goods 2) new factories with modern technology 3) a poorly educated workforce 4) fewer loans being given to businesses

    asked by Evelyn
  94. cal

    find the equation for the tangent line g(x)=x-1/2x+4 at x=-1

    asked by lis
  95. Algebra 1

    3x + y = -11 6x - 2y = -2

    asked by Anonymous
  96. Calculus

    Find all values of c that satisfy the Mean Value Theorem for f(x) = x^3 + 1 on [2, 4].

    asked by Anonymous
  97. English

    I taught (thinking to myself not sure if it’s the right word taught) to myself that I needed to be fluent in programming languages to set myself apart from others in the job market and increase my quantitative skills. Is the proper word "taught" used

    asked by Curious
  98. Math - Aglebra One (Ratios)

    my grandfather has a huge coin collection of silver dollars and 50-cent pieces. He promised to give one fourth if his collection to the first of his grandchildren who can figure put the total value of his coins. The only cares he will give are these: There

    asked by Christine
  99. CHEM 1301

    A sample of propane, C3H8, contains 12.2 moles of carbon atoms. How many total moles of atoms does the sample contain?

    asked by A
  100. social studies

    how would the Philippine government respond to an insurgency? 1) government would try to work with their members 2) government would support it 3) government would ignore it 4) government would fight it fiercely

    asked by Evelyn
  101. math

    ratio 1/3

    asked by karla
  102. Algebra

    A gardener is making a planting in the shape of a trapezoid. It will have 41 plants in the front​ row, 37 in the second​ row, 33 in the third​ row, and so on. If the pattern is​ consistent, how many plants will there be in the last​ row? How many

    asked by Alisha
  103. Pre-Calculus

    Which are examples of the use of parametric equations? A. Position of a person on a ferris wheel. B. Position of a ball after being thrown. C. A and B D. Neither A nor B

    asked by Iris
  104. social studies

    How does the climate of Southeast Asia vary among regions? 1) mainland is much hotter that the islands 2) mainland receives monsoons but islands do not 3) islands are generally wetter than the mainland 4) islands have a subtropical climate but the mainland

    asked by Jaden
  105. cal

    Monthly sales, in thousands, of a new laptop computer grow according to the model N(t)=4.7te^-0.3t where t is the number after introduction. Determine the point of diminishing returns and interpret your answer.

    asked by lis
  106. English

    has anyone read the short story "the new veterans" and can give me like a summary of what happened in the story? i already tried looking online but couldn't find a complete summary? i just need to know mainly the plot? it would be much help

    asked by Kayla
  107. Algebra

    The length of a rectangle is 2 ft less than three times the width. The area is 60 ft SQUARED. Find the length of the rectangle

    asked by Anonymous
  108. Math

    Expand (3+i)^5, where i^2=-1 (3+i)^5=? Please and thanks.

    asked by Philip
  109. Physics

    An object is 3 cm tall is placed 24 cm from a converging lens.a real image is formed 8 cm from the lens.the focal length of the lens is

    asked by Swaleh
  110. math

    Kofi and Ama both receive 50,000 dollars annually in the companies they work for. In Kofi's company, the mean annual salary of 60,000 dollars with a standard deviation of 5,000 dollars. Ama's company on the other hand has a mean annual salary of 35,000

    asked by Kofi1
  111. physics

    A ball is rolled off a table that is 1.25 meters tall and lands on the ground 0.48 meters away. If it took 0.505 seconds for the ball to land, what was the horizontal velocity of the ball? Record your answer to the nearest hundreth m/s (You do not need

    asked by katy
  112. Chemistry

    Arrange the following from LOWEST to HIGHEST number of particles per L of solution: .1m Na3PO4 .1m C2H5OH .01m CO2 .15m NaCL .2m CaCl2

    asked by BCarie
  113. physics

    An object is projected at an angle of elevation of 45 degree with a velocity of 100m/s. Calculate it's range

    asked by anees
  114. Math

    If i rent a boat for 3.5 hours and the cost for 3 hours is 41 dollars and i split the cost with my friend how much will each person pay for the cost

    asked by Jlast
  115. Algebra


    asked by Komal yaseen
  116. MATH

    3xy-ysquare=2 and 2x -3y=-4

    asked by LEKAN
  117. Math 6A unit test

    What is the value of the blank in this question? 6/5 divided by ______ = 6

    asked by Abby
  118. pre calculus

    can you check this question? An object moving vertically is at the given heights at the specified times. Find the position equation s = at^2 + v0t + s0 for the object given the following conditions. •At t = 1 seconds, s = 48 feet •At t = 2 seconds, s =

    asked by Anonymous
  119. precalculus

    Can you check my answer? If it is wrong can you please explain why and give the correct answer? Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6 answer:2x+4y+z=-4 8y-5z=-17 z=1

    asked by Anonymous
  120. 7th grade math

    Allison earns a $40,000 base salary plus a commission equal to 15% of her total sales. What expression represents what she earns in total? I think it is : 40,000 + 0.15s thank you

    asked by please check my work
  121. Math

    Let y=e^(cos^-1x) for modx

    asked by Joel
  122. Math

    How do you find the missing number? 4/5 > 2/x

    asked by Me
  123. Math (Geometry)

    Linerar Equations Hourly rate of $8.00 an hour for a guaranteed 40 hours

    asked by Frank
  124. Math

    Two consecutive angles of a parallelogram measures (X+35) and (5X-21) respectively determine the measures of each angle in the parallelogram.

    asked by Camille
  125. physics

    2. A wooden block slides directly down an inclined plane, at a constant velocity of 6 m/s. a. How large is the coefficient of kinetic friction if the plane makes an angle of 25º with the horizontal? 0.466 b. If the angle of incline is changed to 10º, how

    asked by abby
  126. 7th grade math

    Lightning electronics charges $9.98 plus 0.75 per pound to ship electronic purchases. Write and solve an equation to find the weight in pounds of a dvd player for which the shipping charge is $18.23. I thin k it is 9.98 +.75p = 18.23 the answer being

    asked by one more please check my work
  127. Physics

    Any help is appreciated! A grandfather clock is based on the period of oscillation of a pendulum. The clock keeps perfect time on the first floor of the Sears tower but when carefully moved to the top floor h=436 m above the surface of the earth, the clock

    asked by Jamie
  128. Physics- Fluids

    Please help! Any advice is appreciated A water faucet in a house is h=8 m below the water surface in the local water tower. The radius of the orifice in the fully opened faucet is r=0.01 m. We assume non-viscous flow in this problem. a) How long does it

    asked by Jamie
  129. Math

    A car travels 540 hours om 45L. of gasoline.How far can it travels on 60L. of gasoline?

    asked by John mark
  130. english

    we did not grow rice voice

    asked by mukesh
  131. math

    the position of a car in time t (in hours) is (-10+45t,40+70t) and a truck (40-40t,20+75t) find the distance between the car and the truck at time t=0 in km) i have 53.9km to 1dp find an expression for d^2 in terms of t) I have 7250t^2 -8700t+290 Complete

    asked by s17
  132. Math

    You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00. How much will you save?

    asked by Lucy
  133. Science chemistry

    Determine the number of moles of oxygen in 1 mol of dinitrogen tetraoxide N2O4= N 2×14.01g/mol= 28.02g/mol O 4×16.00g/mol= 64.00g/mol N2O4= 92.02g/mol I can't get the right formula to solve the rest. Please help and thank you

    asked by Farhin
  134. michelle

    An object moving vertically is at the given heights at the specified times. Find the position equation s = at2 + v0t + s0 for the object given the following conditions. • At t = 1 seconds, s = 48 feet • At t = 2 seconds, s = 64 feet • At t = 3

    asked by Anonymous
  135. precalculus

    Write the form of the partial fraction decomposition of the rational expression. 1/9x^2-4

    asked by Anonymous
  136. pre calculus

    Use Gaussian elimination to write the system of equations given below in row-echelon form. 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

    asked by Anonymous
  137. chem

    A sample of oxygen at 32◦C occupies 340 mL. If this sample later occupies 1064 mL at 57◦C and 1.2 atm, what was its original pressure?

    asked by lex
  138. Algebra

    Two number cubes have sides numbered 1-6. If both cubes are rolled at the same time, what is the probability that the numbers on both cubes will be greater than 3?

    asked by Me
  139. Engineering science

    A steel cylinder contains an ideal gas at 27°C. The gauge pressure is 140kPa. If the temperature of the container increases to 79°C, what is the new gauge pressure?

    asked by Shah
  140. Physics

    Gas is confined in a tank at a pressure of 11.0 atm and a temperature of 25.0 degrees C. If two-thirds of the gas is withdrawn and the temperature is raised to 75.0 degrees C, what is the new pressure of the gas remaining in the tank? Please help!

    asked by Anonymous
  141. physics

    Suppose a river flows due south with a speed of 2.0 m/s. Given that speed of motorboat relative to water is 4.2 m/s due east. (a) In what direction should the motorboat head to reach a point on the opposite bank directly east from your starting point? (b)

    asked by Sue
  142. Physics

    Please help! Any advice is appreciated A water faucet in a house is h=8 m below the water surface in the local water tower. The radius of the orifice in the fully opened faucet is r=0.01 m. We assume non-viscous flow in this problem. a) How long does it

    asked by Jamie
  143. Algebra

    Bob is making sandwiches for a school picnic. He is making these types: ham, cheese, and turkey. So far, he has made 12 ham sandwiches, 20 turkey, and 4 cheese. What combination can he make so that exactly 1/5 of the sandwiches are cheese?

    asked by Me
  144. Chemistry 1

    Which shows equilibrium between solute and solvent? I'm stumped. a. 2 M CaCl2 b. 1 g Na2CO3 & 100 mL H2O c. 2 mL methanol & 4 mL hexane d. 1 mL H2O & 3 mL ethanol

    asked by Anonymous
  145. math

    Water weighs about 8 pounds per gallon

    asked by brandon
  146. math

    Joan babysits for 6 dollars per hour.

    asked by brandon
  147. Math -Calculus

    Hi, I need help with the problem: "Use a definite integral to find the area of the region under the curve y=6-4x^2 and above the x-axis". I keep getting stuck at 6x-(4x^3/3). Thanks!!

    asked by Gabby
  148. Math

    The sum of two numbers is 3.What is the maximum value of the product of the first and the square of the second?

    asked by Bhim
  149. math

    Find five rational numbers between - 3/5 and - 1/2

    asked by vivek
  150. math

    How much money will amount on ₹ 560 in 3 years at the rate 4% per annum

    asked by ashutosh
  151. Math

    Elena has 15 more dimes than nickels. If she has $2.55, how many nickels does she have?

    asked by Sam
  152. physics

    calculate the volume in cubic centimeters and area in square millimeters of a spherical bacterium of diameter 2.0um. model the bacteria is spheres

    asked by Sue
  153. English

    What are some personality and physical characteristics of coyotes?

    asked by Boberto
  154. math

    1/2 of a class play soccer, 1/4 of the team are girls, what fraction represents how many girls on the team

    asked by Anonymous
  155. ss

    opponents of the national bank relied on which idea to bolster their arguments? A. states' rights B. suffrage C. federalism D. expansionism i choose A, but i think i'm wrong

    asked by ppap
  156. Math

    How many bricks of size 20cm×10cm×5cm are required to Build the wall leaving 10%of the space for the cement work?

    asked by Isha
  157. Algebra (Please Check My Answers)

    CCA Unit 4 Lesson 11 3. If a number is not a rational number, then it is ______. ~ an integer ~ and irrational number*** ~ a whole number ~ a radical 4. James attached a diagonal brace across a rectangular frame that measures 6 feet by 8 feet. What is the

    asked by A Girly Girl :)
  158. Integral Calculus

    Volume of the area bounded by y=sin(x), x-axis, x is greater than or equal to 0 but less than or equal to pi, revolved about x=3pi/2.

    asked by Alexa
  159. Math

    1. Suppose y varies directly with x and, y=15 and x=5. Write a direct variation equation that relates x and y. What is the value of y when x=9? I need a little help on how to figure out how to write this out. Any help will be appreciated. Thank you

    asked by Anonymous
  160. Physics

    A ship is heading North at 15 km/h in a tide moving a 6 km/h westward. Determine the magnitude and direction of the resultant velocity of the ship.

    asked by Charlotte
  161. Maths

    The numerator of a fraction is 4 less than its denominator if the numerator is decreased by 7 the fraction becomes 2/3. Find the fraction?

    asked by Rizwal
  162. Science chemistry please help

    Determine the number of moles of oxygen in 1 mol of dinitrogen tetraoxide

    asked by Farhin
  163. e

    Find the area of a parallelogram with sides of length 6 and 8, and with an interior angle with measure $45^\circ$.

    asked by Anonymous
  164. Math

    Evaluate the expression when a = 6. a-24 A.-30*** B.-18 C.18 D.22

    asked by Sid.V
  165. Chemistry

    calculate the volume needed to make 2.20 x 10^2 ml of 0.100M cacl2. what would be the total concentration of the final (Cl-) alone?

    asked by Lyn
  166. math

    Complete the statement. Round to the nearest hundredth if necessary. 3 pt =? c

    asked by Howard Yao
  167. Math

    In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a

    asked by John
  168. science

    1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them C)might have many exceptions we don’t know about D)has no exceptions*** 2.Sunspots are A) solar storms that can interfere with

    asked by katrina
  169. geometry

    what are the step to find the volume of an aquarium in cubic feet when its height is 25 1/2 inches and its radius 21 inches?

    asked by jill
  170. Calculus

    Which of the following functions does not satisfy the conditions of the Mean Value Theorem on the interval [-1, 1]? a. 5th root of x b. 2x arccosx c. x/(x - 3) d. sqrt(x + 1)

    asked by Anonymous
  171. English

    Prewriting can be helpful when trying to narrow a topic because it A. can reveal an interesting angle that may become your thesis. B. can usually be submitted as the final essay. C. helps you eliminate ideas that would support your thesis. D. raises a lot

    asked by anonymous
  172. english

    The final section of a research paper paragraph should include _______, to help readers figure out how the evidence supplied in the body of the paragraph supports the topic. A. an analysis B. a transition C. a citation D. a quotation C?

    asked by caitlyn
  173. Calculus AB

    Please help me with this WS 1) Find the value of lim as x-->-(square root of 3) of (-x^4 + 5x^2 -6)/(x+(square root of 3) 2) Find the distance between the discontinuities of g(x)= ((square root of x-4))/(x^2 -5x -1) 3)Find the value of x at which the curve

    asked by Annie
  174. math

    Find the initial amount given an exponential function. Given the equation y = 24(0.77)^t, what is the initial amount? To find the initial amount, I need to replace t with 0. When I do that, I get y = 24(0.77)^0 which is y = 24(1), so y = 24 In doing other

    asked by Carly
  175. AP Bio

    When pure-breeding red cows are bred with pure breeding white cows, the offspring are roan. The roan cows also have a gene for horn vs. hornless cattle. The allele for horns dominates the allele for hornless. If a bull and cow are heterozygous for both

    asked by Mike
  176. geometry

    once you find the voume in cubic inches, how do you convert to cubic feet?

    asked by jill
  177. Math

    Find all solutions of the equation cot(theta)+1=0 through the interval [0,2pie).

    asked by Anonymous
  178. science

    Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but I am having a hard time

    asked by Alli
  179. Gov. please help!!

    I'm not getting what my teacher means by this question: What would constitute an ideal form of gov. in the U.S and how would this help to shape our country more in a positive light?

    asked by D.
  180. Physics

    Do you think that power generated by the electric company means the same thing as the power as explained in this lesson (meaning work over time)? Why or why not? My teacher gave a hint to "Think about each in terms of the amount of work done" Please help!

    asked by Nathaly
  181. MATHS


    asked by BERNARD
  182. history

    Texas decreasing population in the late 1790s, gave the Spanish a reason to _____________

    asked by alexia
  183. Physics

    You set up a ramp with a length of 1.15 m, raising one end to a height of 0.4 m. You then roll a 0.300 kg toy car down the ramp, starting at rest a)What is the change in potential energy of the toy car rolling down this ramp? b)If all of that energy is

    asked by A
  184. physics

    A particle of mass 1kg moving with initial velocity (i+2k)m/s is acted upon by a constant force(i+2j-2k)N,calculate the velocity and distance after 5s.

    asked by kazeem abiodun sikiru
  185. math

    i need help with a problem wanting me to explain the differences between silver and gold using the terms atom and elements

    asked by Tyler
  186. art

    Could you please check my answer please...thank you Which of the following is the best evaluation of the artwork based on the criterion that the piece feature imaginary creatures or things. 1. The artwork is successful because it features a fully clothed

    asked by Justin
  187. English

    If you had read The Last Judgement could you please help me? God...."The fifth and sixth people were an old married couple;he finished them off with an axe and found practically no money, although they had more than twent thousand hidden away." Kugler

    asked by Anonymous
  188. Math

    One half of a number plus three is eighteen. Find the number

    asked by Anonymous
  189. Math

    What is 105/2.1

    asked by Jenny
  190. Math

    Joshua went on shopping spree. He bought a backpack,7 notebooks,4 games and a clock. The backpack cost $16.00, the notebooks cost $9.40 each the games cost $15 each and the clock cost $24.00. How much money did he spend?

    asked by Jenny
  191. Language Arts

    Read the following lines from Sunjata. God is with the just. Everybody does what he wants, But God makes the final decision. The chick destined to be a rooster will eventually crow, No matter what is laid in its path. It will overcome. Which would BEST

    asked by Anonymous
  192. physics

    Suppose Captain Marvel leaps from the top of a 20 m tall building. If his initial speed is 12 m/s, then what is his speed just before he lands on the ground?

    asked by Mary
  193. Chemistry

    2SO2(g]+O2(g]⇌2SO3(g] ,4 conditions by which concentration of SO3 can be increased I need the answer for my exam i would be thankful if anyone answered it THANK YOU

    asked by MANASA
  194. Math: Creating a linear equation

    Alex has been offered $50 to accept the job, plus, $13 per hour. Alex claims he will complete the job in 7 hours. How would you write this as a linear equation in the form of: c = mt + b if c is the cost and t is the time, m is the slope, and b is the

    asked by Avni Singh
  195. Pre-Calculus

    Convert to rectangular: theta=2pi/3

    asked by Iris
  196. Super Hard Math

    What multiplication fact can be found by using the arrays 2 times 9 and 5 times 9

    asked by Markeyvion
  197. Science

    Derive an expression for kinetic energy of an object mass m moving with uniform velcoity v what happens to the kinetic energy of a body if its velcoity is halved?

    asked by Danial
  198. Science, physics

    A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant velocity of the ship. I can't answer it because I don't get the formula. And please give me the formula. I need the answer later.

    asked by Zablanity
  199. college algebra

    James can detail a car​ by himself in 60 minutes. Manny does the same job in 55 minutes. How long will it take them to detail a car working together

    asked by Amberlyn
  200. Science Physics

    Derive an expression for kinetic energy of an object mass m moving with uniform velcoity v what happens to the kinetic energy of a body if its velcoity is halved

    asked by Danial
  201. biology help

    The features listed above describe what type of cell? Unicellular Has a cell wall May have flagella Single chromosome Ribosomes for protein synthesis

    asked by angelina
  202. social studies

    Who built the Great Wall of China? I think a Qin emperor

    asked by Evelyn
  203. Physics

    Derive an expression for kinetic energy of an object mass m moving with uniform velcoity v what happens to the kinetic energy of a body if its velcoity is halved?

    asked by Danial
  204. College alegbra

    A rancher wants to create a fence enclosing 1500 m2 of land. The plot will be divided into two equal areas by an additional fence parallel to two sides as shown in the diagram below. Find the dimensions of the plot which results in using the least amount

    asked by Emily
  205. Math

    My younger sister needs help with this problem: You have an 8 inch stack of dimes, each dimes is a half inch, how many dimes are there? I know the answer is 17, but I need to help her show her work

    asked by Palmer
  206. Math

    There are 12 more girls than boys in the class. 35 % of the class are boys. How many pupils are there in the class?

    asked by Kay
  207. math ( plane)

    find the equation of the plane passes through the middle point of the join of the points (2,-3,1) and (4,5,-3) and is perpendicular to the line joning the points?

    asked by help
  208. Math

    A customer's bill for maintenance and repair at a service station showed 6 quarts of oil at $1.15 each an air filter at $3.75 an oil filter at $7.45 13 gallons of gasoline at $1.15 a gallon and 3 hours labor at $37.00 an hour What was the total bill?

    asked by Jenny
  209. Math

    A car rental agency charges $44.12 per day plus mile for a certain type of car How much is the rental charge for a 3 days trip of 605 miles?

    asked by Jenny
  210. math

    the cost of banana is Re.1 more than that of an orange. Mr asad purchased 12 bananas and 20 oranges . if he paid Rs.108 to the fruit saller, find the price of a banana and orange.

    asked by fazalamin
  211. Science

    If you place a grape in a large amount of sugar water, what will happen to it and why?

    asked by Owen
  212. order pair and relations

    Henry is building a fence in his backyard for his new puppy. he has 36 feet of fencing and wants a fence in a rectangular area. what is one set of whole number dimension of the fenced in area?

    asked by lois
  213. math

    how many sets of 4 are there in sets of 24?

    asked by justin
  214. English

    Explain what the speaker's word choice shows us about puritans. " let us hope, to symbolize some sweet moral blossom that maybe found along the track, or relieve the darking close of a tale of human frailty and sorrow." From the scarlet letter chapter 1

    asked by Emma
  215. Physics

    A 4.05 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 121 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 8.65 m/s, while the spring is

    asked by BrookeNeed
  216. Math

    Ok so in class this is what our teacher had us do.... 1.Pick a number to represent the number of times you would like to have chocolate in a week (more than once, but less than 10 times). 2.Double this amount (just to be bold). 3.Add 5. 4.Multiply the

    asked by Melissa
  217. Math: Creating a linear equation

    Cooper claims he has already completed the job and is offered $141 as a one time payment. you have to write this as c = mt + b if c is the cost, m is the slope, t is the time(hours) and b is y-intercept!!! PLEASE HELP!

    asked by Summer Johnson
  218. Science physics

    A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant velocity of the ship.

    asked by Anon
  219. math

    what is square root of 54 x 3 x i.

    asked by Boberto
  220. Science

    The lung is to the respiratory system as the ____ is to the integumentary system. A) heart B) kidney C)hand D)brain B

    asked by Hayden
  221. Math

    0.23 decimal as a fraction.

    asked by Mahlet
  222. precalculus

    When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution. Give an example that illustrates your answer.

    asked by Anonymous
  223. Algebra

    A taxi charges 1.80 per mile with an initial fee of 12.00 how far can you go with 50.00

    asked by Madison
  224. Portions and integers

    I need help please. Mercury is a metal that is liquid at room temperature. Its melting point of -39 degrees Celsius. The melting point of isopropyl alcohol is -89 Celsius. (Part A) In the context of this problem, what does zero mean ? (I think it just

    asked by Jessica
  225. precalculus

    When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution.

    asked by Anonymous
  226. English

    1. The gate is shut at 7. 2. The gate gets shut at 7. 3. The gate grows shut at 7. 4. The gate becomes shut at 7. (Are they all the same in meaning?) 5. The gate is shut now. 6. The gate stands shut now. 7. The gate lies shut now. 8. The gate remains shut

    asked by rfvv